I'm always a little bit sceptical about products that claim to cover regrowth and have tried a few different ones in the past with varying rates of success. Like others who have reviewed this product, I think Schwarzkopf could probably improve on the way they display the instructions but it's probably not too hard to work out how to use this product. This was the only real criticism I had of the product. I actually tried it on both dry and damp hair and on only half of my hair to see a comparison - yes it's THAT long since I've been anywhere near a salon. To be fair, I had surgery four weeks ago so that's my excuse that I'm currently sticking to. ;) I was really impressed with the coverage. It does come out a little stripy but I found that I could just blend it with a brush or my fingers - as long as I washed it off straight away. It blended really well and most definitely covered the greys - of which there are quite a few. The comparison during the half-and-half trial was definitely noticeable. I even blended it further down to even up the ever-so-slightly mis-matched colour I now have. (I'll bet you have an awesome picture of what my hair looks like! It really does need help!) I didn't find that this product made my hair dry but I'd like to use it on several days before I made a judgment on that as others seem to have found this to be the case. The only thing I would do differently next time is to choose a lighter colour as the one I chose - the dark blonde - was a little too dark for my current colour.